Oklo Resources : Hits High Grade Gold up to 87.5g/t at Disse

3rd MARCH 2022

The Company is pleased to report further highly encouraging results from resource expansion drilling at Disse, forming part of the Seko Mineral Resource within Oklo's flagship Dandoko Project.

The Dandoko Project is located within the Kenieba Inlier of west Mali, approximately 30km east of onlyB2Gold's 7.1Moz Fekola Project and 50km south-southeast of Barrick Gold's 18Moz Loulo/ Gounkoto complex. IAMGold's 2.0Moz Diakha/Siribaya gold resource projects are located to the immediate southwest of Oklo's ~505km2 holding within this emerging world-class gold region

(Figure 1).

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Since announcing the initial MRE in late March 2021, the Company has remained focused on evaluating resource growth opportunities in close proximity to Seko and other targets along the 15km Dandoko gold corridor and within Oklo's adjoining projects (Figure 1).

Assay results reported in this announcement are from a further 16 RC holes totalling 1,761m and 3 DD holes totalling 790.2m completed at Disse.

All significant drill hole intersections are summarised in Table 1, with drill hole locations summarised in Table 2 and presented in Figures 2 - 7.

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3rd MARCH 2022

DISSE

A further 8 holes tested the main Disse structure, a southeast-trending zone extending over a 550m strike length to the south of SK3 that remains open at depth. A modest Inferred Resource of

only150,000t at 2.57g/t Au for 12,100 contained gold ounces was previously reported for Disse1.

The current holes were predominantly drilled to infill sections in the central zone and test for depth continuity in the western zone (Figures 2 - 7).

Significantly, further high-grade primary gold mineralisation was intersected in the central zone with individual grades of up to 87.50g/t gold (Hole RCDS21-372), which remains open at depth (refer to Figure 5).

The following significant intervals of primary high grade gold mineralisation were returned:

Hole RCDS21-373

• 2m at 7.02g/t gold from 63m Hole RCDS21-376
• 5m at 1.65g/t gold from 107m including,
• • 1m at 6.75g/t gold from 111m Hole RDDS22-125
• 6m at 3.76g/t gold from 221m including,
• • 3m at 6.36g/t gold from 224m

personalThe gold mineralisation is hosted within a quartz diorite and is crosscut by a post mineralisation dolerite dyke. Alteration associated with the mineralisation is an early albite ± ankerite phase that is

overprinted with silica - sericite pyrite alteration along brittle fractures that carries the gold mineralisation.

The results received to date at Disse add support for potential high-grade shoot development plunging to the southeast and continuing at depth that require further drill testing for both their open cut and underground potential.

Disse North

First pass assay results received from 6 RC holes at Disse North confirmed a potential parallel Forstructure 300m to the north of the main Disse trend, with a narrow zone of high-grade gold intersected in hole RCDS21-380 returning 1m at 23.00g/t gold from 40m along with 1m at 3.88g/t

gold from 1m. This zone will be further investigated. Disse South East

A total of 5 RC holes tested for a south-eastern extension to the Disse host structure over a further 200m. The holes were successful in intersecting the Disse trend but only returned low tenor gold intersections, including 3m at 1.16g/t gold from 26m in hole RCDS21-367.

A further RC hole (RCDS21-374) was abandoned at 42m prior to the target depth and was not assayed.

1 Refer to ASX announcement titled "Oklo Delivers Robust Initial JORC Resource" dated 30 March 2021

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3rd MARCH 2022

Figure 3: Drone photo showing the location of Disse (foreground) and the Seko gold system (background)

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3rd MARCH 2022

Figure 5: Disse Cross Section A-A' showing previous results and new drilling results.

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